Finding the Third Proportional to 64,594.50 and 141,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,594.50 : 141,919.50 = 141,919.50 : x
2. Step 2: Convert to fraction form
   64,594.50/141,919.50 = 141,919.50/x
3. Step 3: Cross multiply
   64,594.50x = 141,919.50 × 141,919.50
4. Step 4: Simplify right side
   64,594.50x = 20,141,144,480.25
5. Step 5: Solve for x
   x = 20,141,144,480.25/64,594.50
6. Step 6: Final answer
   x = 311,808.97